How do I make the announcement bar visible on mobile only?

Site URL: https://toledomosquito.squarespace.com/

Site: 
https://toledomosquito.squarespace.com/
 

P/W:
toledomosquito

Add to Design > Custom CSS

/* hide announcement bar on desktop only */
@media screen and (min-width:768px) {
div.sqs-announcement-bar-dropzone {
    display: none;
}
}

Thank you so much for your help! @tuanphan

Hi - for some reason this isn't workin' for me. It seems to be showing up on mobile and desktop, tho I think I have the code in the custom CSS correctly?
 

Any help Tuan?

Site is: littleengines.pub

16 hours ago, ALV said:

Hi - for some reason this isn't workin' for me. It seems to be showing up on mobile and desktop, tho I think I have the code in the custom CSS correctly?
 

Any help Tuan?

Site is: littleengines.pub

Can you enable announcement bar first? I don't see it now.